---
title: "Grounding Tester — $67K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/grounding-tester"
last_updated: "2026-08-09T06:33:38.155Z"
locale: en
meta:
description: "Niche score 49/100 · $67K/yr market · 57K searches/yr · $21.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 49/100 · $67K/yr market · 57K searches/yr · $21.09 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Grounding Tester — $67K/yr Amazon US Niche (2026) - Flapen"
---
# **grounding tester**
**Skip it**
Soft demand (-19.2% this quarter) — this niche doesn't clear our bar today.
Market size 17Growth 15Conversion 63Competition 62Returns 61Price range 52Avg price 90Brand share 80Review moat 34Quality gap 53
**Avg price**
**Great****$21.09**
avg listing price — sweet spot $15–$100
**Brand share**
**Great****55%**
top-5 brand share — no brand owns this niche
**Conversion**
**Good****5.5%**
search→purchase rate — share of searches ending in a sale
**Competition**
**Good****48%**
top-5 click share — leaders hold, buyers still browse
**Returns**
**Good****2.5%**
return rate — above 5% kills the launch gate
**Quality gap**
**Good****4.4★**
avg incumbent rating — lower means beatable quality
**Price range**
**Good****$6.62–$171.05**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Okay****3,079.69**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Bad****$67K**
$67K/yr · 57K searches
**Growth**
**Bad****-19.2%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, grounding tester is a $67K/yr Amazon United States market (57K searches/yr). The top 5 brands hold 55% of demand. Verdict: Skip it — 49/100.
Data updated Jul 27, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **grounding tester market data**
- **Units sold / yr**
- **4K–5K**
- avg 100–250/product
- **Revenue / yr**
- **$84K–$105K**
- units × avg price
- **Conversion rate**
- **5.5%**
- **Avg BSR**
- **#251**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **83%**
- **Out of stock**
- **10.7%**
- **Avg brand age**
- **48 months**
- **Avg seller age**
- **168 days**
## **Competition & brand share**
The top 5 products take 48% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**21 **▼falling
**Sellers**
**75**
**Top-5 brand share**
**55%**
Top 20: 99%
**Top-5 click share**
**48%**
Top 20: 93%
**Open market**
**37%**
- KLEIN TOOLS16% - GroundLuxe12% - Merisky11% - GAYA8% - BESTING8% - BTFO8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -19.2% search growth over the last 90 days.
2K2KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.6×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/grounding-tester/trend)
## **Top grounding tester search terms**
- **ground tester**13K/yr-0.5%6.8% conv. - **grounding tester**16K/yr-26.2%6.9% conv. - **grounding tester earthing**6K/yr+0.3%5.8% conv. - **grounding mat tester**5K/yr-39.7%8.9% conv. - **grounding meter tester for earthing**4K/yr-10.1%4.2% conv. - **grounding meter**3K/yr+0.8%3.9% conv. - **grounding outlet tester**4K/yr-45.8%13.3% conv. - **outlet tester for grounding**3K/yr-24.6%5.9% conv. - **grounding sheet tester**3K/yr-34.0%9.4% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/grounding-tester/search-terms)
## **Top grounding tester products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%3%$2K6%$4K9%$6K12%$8K1101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Outlet Tester for Grounding Products - Test Receptacles & Sockets for Proper Wiring - Simple Tool for Electrical Assessment**GroundLuxe**$9.73**4.7★624 rev](https://www.amazon.com/dp/B0C8WNXFYR) [2**Merisky Conductivity Test Pen Tester for Earthing Continuity Tester for Grounding Mats Sheets Pads Socks Pillow Cases. Use to Test Effectiveness of Earth Connected Products.**Merisky**$9.62**4.2★352 rev](https://www.amazon.com/dp/B0D12NDZ4S) [3**Klein Tools RT110 Outlet Tester AC Electrical Receptacle Tester for North American Outlets**KLEIN TOOLS**$9.94**4.8★3,542 rev](https://www.amazon.com/dp/B01AKX3AYE) [4**BESTING Grounding Tester Kit with US Standard-No Battery Required Yellow**BESTING**$14.14**4.5★97 rev](https://www.amazon.com/dp/B0DT8K77RM) [5**EARTHVERA Grounding Mat for Feet Sleep Improvement & Pain Relief 2416 Conductive Carbon Earthing Pad with Multimeter for Body Voltage Testing Inflammation Relief Stress Reduction Grounding Mat for Bed Desk Office | 15ft Cord Included**EARTHVERA**$28.63**4.1★438 rev](https://www.amazon.com/dp/B0F1V5YKQB)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GAYA Grounding Kit | 4-Piece Earthing Set with Outlet Tester Conductivity Pen 15ft Grounding Cord & Dual Plug Adapter | Universal Compatibility for Grounding Mat Sheet & Pillowcase**GAYA**$11.66**13 rev6mo ago](https://www.amazon.com/dp/B0GFLM1WXL) [**Grounding Tester Kit GFCI Inspection Socket Tester with Conductivity Test Pen Outlet Continuity Testing Tool for Mat Pads Sheets Pillow Cases Blankets Wristband (US Standard Outlet)**BTFO**$9.74**23 rev8mo ago](https://www.amazon.com/dp/B0G2V79R4N) [**Grounding Product Test Kit with Outlet Tester and Conductivity Test Pen Grounding Tester Earthing Ground Tester Conductivity for Mat Pads Sheets Pillow Cases Blankets Wristband Accessories**hinbkenla**$8.35**12 rev9mo ago](https://www.amazon.com/dp/B0FXQ78JQN) [**Grounding Tester with Grounding Wire (White)**NHIDKU**$15.22**101 rev10mo ago](https://www.amazon.com/dp/B0FQNQMM51) [**Grounding Tester Kit Conductivity Test Pen & Outlet Continuity Tester Ground Product Test Kit for Mat Pads Sheets Pillow Cases Blankets Wristband Accessories (US Standard Outlet)**BTFO**$9.46**92 rev11mo ago](https://www.amazon.com/dp/B0FNMY6SSX)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GAYA Grounding Kit | 4-Piece Earthing Set with Outlet Tester Conductivity Pen 15ft Grounding Cord & Dual Plug Adapter | Universal Compatibility for Grounding Mat Sheet & Pillowcase**GAYA**$11.66**4.0★**▲ 443%**](https://www.amazon.com/dp/B0GFLM1WXL) [**Nouiseuns Grounding Tester Outlet Tester & Conductivity Test Pen for Earthing Sheets Mats Blankets Pillowcases Wristbands and Other Grounding Products**Nouiseuns**$8.97**4.3★**▲ 220%**](https://www.amazon.com/dp/B0FGJWY2Q5) [**Earth Ground Resistance Tester 0.03-2000 ohm Meter Upgraded Earth Resistance Tester Auto Measurement 600V AC Ground Voltage Meter with 6pcs 1.5V Batteries Tool Bag**DUOYI**$87.32**4.8★**▲ 219%**](https://www.amazon.com/dp/B0DDXYFH69) [**Grounding Product Test Kit with Outlet Tester and Conductivity Test Pen Grounding Tester Earthing Ground Tester Conductivity for Mat Pads Sheets Pillow Cases Blankets Wristband Accessories**hinbkenla**$8.35**4.2★**▲ 188%**](https://www.amazon.com/dp/B0FXQ78JQN) [**EARTHVERA Grounding Mat for Feet Sleep Improvement & Pain Relief 2416 Conductive Carbon Earthing Pad with Multimeter for Body Voltage Testing Inflammation Relief Stress Reduction Grounding Mat for Bed Desk Office | 15ft Cord Included**EARTHVERA**$28.63**4.1★**▲ 106%**](https://www.amazon.com/dp/B0F1V5YKQB)
**~~View all trending →~~**
## **What buyers say about grounding tester**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Advertised Vs Actual Product**17%
*“As advertised”*
**Ease Of Use**17%
*“Simple to use”*
**Value For Money**16%
*“Works good for the money”*
**Quality-Overall**13%
*“Excellent product”*
**Efficiency**12%
*“WORKS ON WHAT I USE”*
**Measurement/Reading Accuracy**3%
*“Clear, accurate, and incredibly helpful”*
**Functionality-Overall**2%
*“it does work ok”*
**Instructions/User Manual/Troubleshooting**2%
*“Two stars for good instructions”*
**Battery Life**2%
*“Battery it came with is working fine”*
**Strength**1%
*“The build feels solid”*
### **What buyers complain about **
**Functionality-Overall**18%
*“Did not function properly”*
**Quality-Overall**13%
*“Complete garbage”*
**Measurement/Reading Accuracy**11%
*“The test meter is not function”*
**Durability**9%
*“Cheap and breaks easily”*
**Battery Life**4%
*“melting the battery”*
**Ease Of Use**4%
*“Too complicated for me”*
**Value For Money**3%
*“Not worth the postage”*
**Defective Material/Parts**2%
*“it turned out all had a faulty. old”*
**Size-Overall**2%
*“not the ideal size”*
**Instructions/User Manual/Troubleshooting**2%
*“Reading the manual is a bigger chore than diagnosing the issue you made the purchase to fix”*
### **Top return reasons **
**Functionality-Overall**32%
**Measurement/Reading Accuracy**13%
**Value For Money**9%
**Advertised Vs Actual Product**9%
**Compatibility-Overall**7%
**Defective Material/Parts**6%
**Size-Overall**4%
**Instructions/User Manual/Troubleshooting**3%
**Quality-Overall**3%
**Ease Of Use**3%
## **Common questions**
- **Is grounding tester profitable to sell on Amazon United States?**
- The niche generates $67K/yr across 29 tracked products. 0 of 7 products launched in the last 360 days are still selling. 90-day search growth is -19.2%. Flapen's verdict: Skip it (49/100).
- **How competitive is the grounding tester niche?**
- 21 brands and 75 sellers compete. The top 5 products take 48% of clicks and top 5 brands hold 55% of demand.
- **What do buyers complain about in grounding tester?**
- Top complaints mined from reviews: Functionality-Overall, Quality-Overall, Measurement/Reading Accuracy. The return rate is 2.5%.
- **When does demand for grounding tester peak?**
- Demand is steady year-round — the busiest month runs 1.6× the quietest.
- **What does it cost to enter the grounding tester niche?**
- Listings span $6.62–$171.05; the average listing price is $21.09 (sweet spot $15–$100). The average incumbent carries 3,080 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)